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Finding the Fourth Proportional to 258,502.42, 387,753.77 and 118,162.63

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Solution

The fourth proportional to 258,502.42, 387,753.77 and 118,162.63 is: 177,244.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,502.42 : 387,753.77 = 118,162.63 : x
  2. Step 2: Convert to fraction form
    258,502.42/387,753.77 = 118,162.63/x
  3. Step 3: Cross multiply
    258,502.42x = 387,753.77 × 118,162.63
  4. Step 4: Simplify right side
    258,502.42x = 45,818,005,255.62
  5. Step 5: Solve for x
    x = 45,818,005,255.62/258,502.42
  6. Step 6: Final answer
    x = 177,244.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.